Atoms/Molecules/Compounds
Positive
What is the chemical formula for sodium chloride?
NaCl
Balance: H₂ + O₂ → H₂O
2H₂ + O₂ → 2H₂O
What element has the symbol O?
O
How many players are on a basketball team on the court at one time?
5
What is a substance made from only one type of atom called?
Element
What is the chemical formula for magnesium oxide?
MgO
Balance: Na + Cl₂ → NaCl
2Na + Cl₂ → 2NaCl
What type of elements are found on the left side of the periodic table?
Metals
Which continent is Egypt located in?
Africa
What do we call two or more atoms chemically bonded together?
Molecule
What is the formula for calcium chloride?
CaCl₂
Balance: Mg + O₂ → MgO
2Mg + O₂ → 2MgO
What is the symbol for gold?
Au
Which country started World War I by invading Poland?
Germany
What is a substance made from two or more different elements chemically bonded?
Compound
What is the formula for aluminium oxide?
Al₂O₃
Balance: Fe + O₂ → Fe₂O₃
4Fe + 3O₂ → 2Fe₂O₃
How many protons does carbon have?
6
Which pop star is known as “The King of Pop”?
Michael Jackson
Is CO₂ an element, molecule, or compound?
Compound
What is the formula for sodium phosphate?
Na₃PO₄
Balance: C₃H₈ + O₂ → CO₂ + H₂O
C₃H₈ + 5O₂ → 3CO₂ + 4H₂O
What group are the noble gases in?
Group 18
How many bones are in the adult human body?
206